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如何实现设置用户头像功能呢? - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...微信中点击头像会弹出从相册中选择或者拍照来设置头像功能 多媒体下面组件可以实现,具体用法参考中文文档:https://www.fun123.cn/reference/components/media.html App Inventor 2  发表于 2024-11-17 18:58 多媒体下面组件可以...
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Web客户端“接收文本”时会显示那样内容而不是返回值? - App Inventor 2...

为什么我按教程写这个代码[url=]求助.PNG[/url],在接受文本时会显示那样内容而不是返回值啊[url=]求助1.PNG[/url] 你打印是“响应类型”,当然就是你截图application/json 了。 真正json内容,是“响应内容”!
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2025年3月7日签到记录贴 - 签到区 - 清泛IT社区,为创新赋能!

本贴是论坛每日签到系统在每天第一位签到者签到时所自动生成,如果您还未签到,请点此进行签到操作. 我在 2025-03-07 07:07 完成签到,是今天第一个签到用户,获得随机奖励 小红花 8,另外我还额外获得了 小红花 10.我今天最...
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如何屏蔽APP输出报警信息 - App应用开发 - 清泛IT社区,为创新赋能!

请问如何屏蔽APP输出报警信息,或者将报警信息改为中文自定义信息 在这个统一异常处理函数中处理报错信息,或者自定义提示信息: 组件:一般是拓展名称 函数名称:如SendData 错误编号:上图 -2,你可以判断,...
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串口Read不到数据问题 - 用户反馈 - 清泛IT社区,为创新赋能!

用户发送是 8n1 格式,但是ai2串口貌似不支持这种格式。写串口正常,读串口为空,len为0。 目前经过测试验证,应该是 \n 作为结束符。发送时,也是。 ai2使用 physicaloid 库完成串口功能。
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How do I set $PATH such that `ssh user@host command` works?

...thing like this: # If not running interactively, don't do anything [ -z "$PS1" ] && return You want to put anything for non-interactive shells before this line. share | improve this answe...
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`testl` eax against eax?

... realized I had almost exactly duplicated most of what I wrote in June. Oops! I updated it with more reasoning to back up my claim that test a,a and cmp $0,a set flags identically; thanks for pointing out that that's a non-trivial claim. re: TEST vs. test: recently I've started using all-caps lik...
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How do I get SUM function in MySQL to return '0' if no values are found?

... PS. For anyone working with Postgres, it supports only coalesce. – Siddhartha Dec 7 '17 at 6:27 add ...
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Virtual functions and performance - C++

...the iPhone is a good example of performant code: youtube.com/watch?v=Pdk2cJpSXLg – Crashworks Jun 10 '11 at 22:18 13 ...
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Step-by-step debugging with IPython

... and a list of commands. IPython is now called (edit: part of) Jupyter. ps: note that an ipdb command takes precedence over python code. So in order to write list(foo) you'd need print list(foo). Also, if you like the ipython prompt (its emacs and vim modes, history, completions,…) it's easy t...